Hong Kong police are investigating a suspected murder-suicide after an 80-year-old man allegedly jumped to his death from a residential building, shortly before officers found his 66-year-old wife dead inside their flat. The force said on Monday that a security guard from Kwai Chung Estate, a public housing estate in Kwai Tsing, reported that the man had fallen from a height at Chun Kwai House at about 11.30pm on Sunday. His wife was subsequently found collapsed inside their flat at the same...